package com.lanou.bookstore.user.service;

import com.lanou.bookstore.user.dao.LoginDao;
import com.lanou.bookstore.user.domain.User;
import com.lanou.bookstore.util.JDBCUtil;

public class LoginService {
    private LoginDao loginDao=new LoginDao();

    public User login(String username,String password) {

            try {
                if (username == null || password == null) {
                    return null;
                }
                if (!loginDao.canLogin(username, password)) {
                    return null;
                }
                User user = loginDao.login(username, password);
                return user;
            } finally {
                JDBCUtil.closeConn();
            }
        }
    }









